| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Masterminds Riddle Math for Middle Grades: Decimals, Percentages, Metric System, and Consumer Math: Reproducible Skill Builders and Higher Order Thinking Activities Based on NCTM Standards | 978-0-86530-301-0 | 1995 | Brenda Opie |
| Masterminds Riddle Math for Middle Grades: Fractions, Ratio, Probability, and Standard Measurement: Reproducible Skill Builders and Higher Order Thinking Activities Based on NCTM Standards | 978-0-86530-302-7 | 1995 | Brenda Opie · Douglas McAvinn |
| Masterminds Riddle Math for Middle Grades: Geometry and Graphing: Reproducible Skill Builders and Higher Order Thinking Activities Based on NCTM Standards | 978-0-86530-305-8 | 1995 | Brenda Opie |
| Multiplication and Division: Reproducible Skill Builders and Higher Order Thinking Activities Based on NCTM Standards | 978-0-86530-304-1 | 1995 | Brenda Opie · Douglas McAvinn |